Hieam field



. (No Model.)

H. FIELD.

PUMP.

Patented Mar. 16,-v 1886.

INVENTOR 5%? WITNESSES ATTORNEYS.

N. PEYERs. Phcln-Ulhogmphcn Wmrn mn. I16.

UNITED STATES PATENT OFFICE.

HIRAM FIELD, OF SMITHVILLE, ONTARIO, ASSIGNOR TO HIMSELF, AND JOHN HENRY SMITH, OF NORTH GRIMSBY, ONTARIO, CANADA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 338,147, dated March 16, 1886.

Application filed December 26, 1885. Serial No.186,74fi. (No model.)

To all whom it may concern:

Be it known that I, HIRAM FIELD, of Smithville, in the Province of Ontario and Dominion of Canada, have invented a new and useful Improved Pump, of which the following is a full, clear, and exact description.

My invention relates to pumps, and has for its object to provide asimple, effective, and in expensive pump which may be worked easily to lift or force liquids with effectiveness and economy of the power applied to operate it.

The invention consists in certain novel features of construction and combination of parts of the pump, all as hereinafter fully set forth, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical sectional elevation of my improved pump. Fig. 2 is a transverse section thereof at the point of connection of the discharge-spout with the pump-barrel; and Fig. 3 is a transverse section taken on the line 00 00, Fig. l.

The main barrel A of the pump, which may be supported in any approved way over a well, cistern, or vessel from which a liquid is to be drawn, may have fitted to it a supplypipe, B, of requisite length, and at the bottom of the barrel A is fitted over an aperture, a, an upwardly-opening flap or check valve, 0, of common construction.

To the barrel A is clamped by a set-screw, d, the collar or ring D, into which, opposite an opening, a, of the barrel, is screwed the discharge-spout E, which is fitted with the usual air-chamber, F, a packing, as ate, being fitted between the collar D and the barrel around the opening a, to make a tight joint.

Within the pump-barrel A is fitted loosely the plunger G, which is provided at its lower end with a hollow screw-plug, h, in which the upwardly-opening valve H is fitted, and near its upper end the plunger is provided with side slots or openings, 9 g, which give free outlet of liquid from the interior of the plunger to the barrel A and its spout E. The upper part, 9, of the plunger above the slots 9 forms a liquid-forcing head on the downstroke of the plunger, as hereinafter more fully eX- plained, and the part g has apertures i, beneath which is fitted a downwardly-opening check or flap valve, I,.which may have any approved construction, and, as shown, consists of a leather disk or plate held by the headed screw or stud i, which is secured to the top of the plunger, or it may be to the rod J, which connects the plunger with the pump-handle. The plunger-rod J preferably passes through a stuffing-box, 70, provided on the cap K, which is screwed to the top of the pump-barrel A, and the rod is guided in a suitable long bearing in the cover k of the stuffing-box. The pump-handle L is fulcrumed on a pin, Z, to the upper forked end of a rod, M, the lower end of which is pivoted by a pin, m, to and between the lugs or ears n n of an open collar or band, N, which is clamped around the pump-barrel below the spout E by one or more bolts, a. (See Figs. 1 and 3.) The short arm of the pump handle or lever is pivoted by a pin, 0, to lugs on a collar or sleeve, 0, which is slipped onto the plunger-rod J, and may be fastened to it in any required position by a set-secrew, 0, or equivalent device. A suitable serew plug or cap, F, is fitted to a hole in the top of the air-chamber F, and a screw-plug or a pin, A, is fitted in a hole in the pump-barrel A, near its top, so that said plugs F A may be removed at any time to admit air to regulate the action of the pump.

As thus far described, the operation of the pump is as follows: When the plunger G is raised, its valve H will close, and the water which had passed into the plunger on its last downstroke will be lifted by the plunger, and as the plunger rises the valve G will open and the water from below will follow the plunger and fill the barrel below it, and also fill the space at P between the exterior of the plunger and the interior of the barrel, and constitute a water-packing between the sides of the plunger and barrel, and as the plunger rises the water lifted by it will escape at the spout E, and the water, rising above the plunger when it is lifted, will pass through the aperture z and past the valve I, which then opens for this purpose, and thus allows escape of water into the plunger to prevent obstruction of the upward stroke of the plunger by water above it. On the downstroke of the plunger the valve I will close the apertures i, and the entire head 9 of the plunger will then act to force the water above the spout E downward and out of the spout as the upward current of Water then entering the plunger past the valve H meets the current of water being forced down by the head of the plunger, as above described, the valve 0 having closed at the beginning of the downstroke of the plunger, as will readily be understood.

It is obvious that a liquid will be discharged from the pumpspout E on the up and down strokes of the plunger, the pump thus having both lifting and forcing actions; hence its capacity for any given size of barrel and plunger will be large, and the airchamber at F will insure the outflow of a continuous even volume ofliquid.

Should the lifting action only be desired, the pump-barrel A will out off at the point indicated by the line 1 in Fig. 1, and the plunger will be out off at the top, so that when fully lifted it will reach only about to the line 2 or even with the spout E, and in this case the tops of both the barrel and plunger will be fully open to the air.

Holes at R S, respectively, are provided in the plunger and barrel for escape of water to prevent freezing up of the pump.

When theliquid is to be lifted by the pump a short distance only, -there may be considerable looseness at 1? between the plunger and barrel, to provide a water or liquid packing between them, as above described, and as the. lift increases the fit of the plunger in and to 0 the barrel will be closer, to reduce the space at P for the liquid packing, which thus always makes an effective air-tight joint between the plunger and barrel, and the ordinary fibrous or leather packing to the plunger is dispensed with, and the friction in Working the pump is considerably reduced.

The pump is specially adapted to lift and force liquids from deep wells and mines.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, in a pump, of a barrel, A, having an aperture, a, an upwardly-opening valve, 0, fitted thereover, an outlet, E, and a closed head or cap, K, a hollow plunger, G, fitted loosely in the barrel and provided with a bottom passage, and a valve, H, fitted thereto, a downwardlyopening valve, I, closing apertnresi in the top of the plunger, side openings, 9, below the head part g of the plunger, and means, substantially as specified, for operating the plunger in the barrel, as and for the purposes herein set forth.

2. A pump comprising the barrel A, having an aperture, a, and an upwardly-opening valve, 0, at its lower end, a cap, K, on the upper end of the barrel, having a stuffingbox, I6, and a discharge-opening, a, with the hollow plunger G, having the upward-opening valve H in its lower end, apertures in its up per end, a downward-opening valve, I, for said apertures, intermediate openings, 9, the rod J, connected to the plunger and extended through the cap and stuffing-box, the handlelever L, and the fulcrum-rod M, connecting the handle to the barrel, all constructed and arranged substantially as set forth.

HIE-AW FIELD.

Witnesses:

JOHN BINFIELD BRANT, CHARLES H. OLAUS. 

